/// <summary>
/// Sends the given message to all subscribers (asynchonous processing).
/// The returned task waits for all synchronous subscriptions.
/// </summary>
/// <typeparam name="MessageType">The type of the message.</typeparam>
public Task PublishAsync <MessageType>()
where MessageType : SeeingSharpMessage, new()
{
return(m_syncContext.PostAlsoIfNullAsync(
() => Publish <MessageType>(),
ActionIfSyncContextIsNull.InvokeUsingNewTask));
}